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  2. Spermatogenesis - Wikipedia

    en.wikipedia.org/wiki/Spermatogenesis

    The spermatids are transformed into spermatozoa (sperm) by the process of spermiogenesis. These develop into mature spermatozoa, also known as sperm cells. [2] Thus, the primary spermatocyte gives rise to two cells, the secondary spermatocytes, and the two secondary spermatocytes by their subdivision produce four spermatozoa and four haploid ...

  3. Hypospermia - Wikipedia

    en.wikipedia.org/wiki/Hypospermia

    This means that the sperm is produced in the testes but on its way out, it gets misdirected into the bladder rather than coming out through the urethra. This can lead to a low volume of semen (hypospermia) or no semen production . Structural or functional damage to the bladder neck muscle causes the backflow of semen during the ejaculation.

  4. Male infertility - Wikipedia

    en.wikipedia.org/wiki/Male_infertility

    Usually, affected men show no symptoms, although they may have smaller testes. Men with this condition may exhibit azoospermia (no sperm production), oligozoospermia (small number of sperm production), or they may produce abnormally shaped sperm (teratozoospermia). [22] This case of infertility occurs during the development of gametes in the male.

  5. Spermiogenesis - Wikipedia

    en.wikipedia.org/wiki/Spermiogenesis

    Sperm Spermiogenesis is the final stage of spermatogenesis , during which the spermatids develop into mature spermatozoa . At the beginning of the stage, the spermatid is a more or less circular cell containing a nucleus , Golgi apparatus , centriole and mitochondria ; by the end of the process, it has radically transformed into an elongated ...

  6. Sperm - Wikipedia

    en.wikipedia.org/wiki/Sperm

    Sperm quantity and quality are the main parameters in semen quality, which is a measure of the ability of semen to accomplish fertilization. Thus, in humans, it is a measure of fertility in a man . The genetic quality of sperm, as well as its volume and motility, all typically decrease with age . [ 17 ]

  7. Human reproduction - Wikipedia

    en.wikipedia.org/wiki/Human_reproduction

    Human sexual reproduction, to produce offspring, begins with fertilization. Successful reproduction typically involves sexual intercourse between a healthy, sexually mature and fertile male and female. [1] During sexual intercourse, sperm cells are ejaculated into the vagina through the penis, resulting in fertilization of an ovum to form a ...

  8. 13 sneaky signs your testosterone is too low

    www.aol.com/13-sneaky-signs-testosterone-too...

    Red blood cell production. Sperm production. Your body's ability to store and burn fat. Regulating your emotions and mood. Fertility. Mental clarity and focus. Maintaining bone strength. Energy levels

  9. Spermatocyte - Wikipedia

    en.wikipedia.org/wiki/Spermatocyte

    In all animals, males produce spermatocytes, even hermaphrodites such as C. elegans, which exist as a male or hermaphrodite. In hermaphrodite C. elegans, sperm production occurs first and is then stored in the spermatheca. Once the eggs are formed, they are able to self-fertilize and produce up to 350 progeny. [3]